A. Musnansyah, A. A. Kamil, L. Marliana, E. Widayati, and .-. Zulfakriza, “Assessment of Spatial Water Quality Observation of Citarum River Bandung Regency Using Multivariate Statistical Methods”, Int. J. Adv. Sci. Eng. Inf. Technol., vol. 11, no. 1, pp. 356–362, Feb. 2021.